HCPL-7820 Datasheet, PDF (9/15 Pages) Agilent(Hewlett-Packard) – High CMR Analog Isolation Amplifiers

V_DD1
0.1 µF
V_DD2
1
8
2
7
HCPL-7820/7825
3
6
0.1 µF
10 K
10 K
4
5
0.47
µF
Figure 1. Input Offset Voltage Test Circuit.
+15 V
0.1 µF
+
– _AD624CD
GAIN = 100
0.47 ^{0.1 µF}
µF
V_OUT
-15 V
0.6
0.5
0.4
0.3
V_DD1 = 5 V
V_DD2 = 5 V
0.2
0.1
0
-0.1
-40 -20 0 20 40 60 80 100
T_A – TEMPERATURE – °C
Figure 2. Input Offset Change vs.
Temperature.
0.5
vs. V_DD1 (V_DD2 = 5 V)
0.4
vs. V_DD2 (V_DD1 = 5 V)
0.3
T_A = 25°C
0.2
0.1
0
-0.1
-0.2
4.4 4.6 4.8 5.0 5.2 5.4 5.6
V_DD – SUPPLY VOLTAGE – V
4.0
3.5
NEGATIVE
OUTPUT
3.0
POSITIVE
OUTPUT
2.5
2.0
V_DD1 = 5 V
V_DD2 = 5 V
T_A = 25°C
1.5
1.0
-0.6 -0.4 -0.2 0 0.2 0.4 0.6
V_IN – INPUT VOLTAGE – V
Figure 3. Input Offset Change vs. V_DD1
and V_DD2.
Figure 4. Output Voltages vs. Input
Voltage.
V_DD1
V_DD2
404
V_IN
0.1 µF
13.2
0.01 µF
1
8
2
7
HCPL-7820/7825
3
6
0.1 µF
10 K
10 K
4
5
0.47
µF
Figure 5. Gain and Nonlinearity Test Circuit.
+15 V
0.1 µF
+15 V
0.1 µF
+
– _AD624CD
GAIN = 4
0.47 ^{0.1 µF}
µF
-15 V
10 K
0.47
µF
+
– _AD624CD
GAIN = 10
V_OUT
0.1 µF
-15 V
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